The linked video shows how to test a water valve to a washing machine. He starts by doing a continuity test on the valve and expects the circuit to be closed. He said an open circuit indicates a bad valve.
In my case, both my water valves have no continuity (thus open circuit, thus broken according to the youtuber). But if I simply attach 220v to the valves as suggested in this video, they both open and let water flow. So it seems there is no problem in that regard.
I don’t suppose he is testing incorrectly. He has lots of washer repair videos and seems to know what he is talking about. So why would my valves fail the continuity test? Is that cause for concern?
(trivia: my actual problem that has me tearing things apart seems to be that the controller board is not sending the 220v despite being fed 220v just fine, so I suspect the controller board).